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Mesoscale Discussion 1366
NWS Storm Prediction Center Norman OK
0253 PM CDT Fri Jul 31 2020
Areas affected...Eastern New Mexico
Concerning...Severe potential...Watch possible
Valid 311953Z - 312200Z
Probability of Watch Issuance...60 percent
SUMMARY...Increase in coverage of severe storms expected in the next
1-2 hours, watch possible.
DISCUSSION...Regional satellite shows a few focused areas of
boundary layer cumulus development, one over southern portions of
the Sangre De Cristo Mountains and another along the Sacramento
Range in south-central New Mexico. These areas of development are
occurring within an environment characterized by modest instability
(MLCAPE 1500-2000 J/kg) and moderate effective bulk shear (35-45
kt). In addition, steep low- and mid-level lapse rates (approaching
9 C/km) are present across the region.
With continued diabatic heating, the ongoing convective development
is expected to result in more numerous coverage of storms this
afternoon. The aforementioned CAPE/shear parameter combination will
help to organize storms into perhaps a few supercells capable of
large hail and damaging wind gusts. Coverage of storms is generally
expected to increase from north to south over the area. Should these
convective trends unfold, a severe thunderstorm watch may be needed
for parts of the region by late afternoon.
..Karstens/Bunting.. 07/31/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MAF...ABQ...EPZ...
LAT...LON 32500546 33720584 35680606 36350577 36630525 36500464
36180404 35400372 32920424 32340465 32500546
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